Flexible means for guiding locomotives.



Eafented Apr. 25, 1918.,

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Inven wand.

JOSEPH W. BUCKLAND, OF MONTREAL, QUEBEC, CANADA.

FLEXIBLE MEANS ron enrnrne Locomotives.

aacaaai.

Application filed any as, 1917,

To all whom it may concern:

Be it known that I, JosnrH WELLINGTON Boon-LAN of the city of Montreal,Province of Quebec, Dominion of Canada, a subject of the King of GreatBritain, have invented certain new and useful Improvements in FlexibleMeans for Guiding Locomotives; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

The objectof this invention is to provide a simple and inexpensiveyielding resistance for the leading driving'wheels and located betweenthe driving-box crosssaddle and spring-seat; a further object being toprocure a substantial design which may be readily applied to existinglocomotives without the necessity of making any radical changes in theaxle-box and main frame.

To this end the invention may be said to consist of the specificcombination and particular arrangement of parts whereby inclined planesare utilized at the location above mentioned where maximum movement ispermitted within the available space between the frame and wheels.

More specifically stated the invention in volves the particularconstruction of a crosssaddle extending across the locomotive frame withits ends straddling the engine main frame and its top splices, suchcrosssaddle having the bottom of its ends in engagement with theaxle-boxes and the tops ofsuch ends formed to carry the lower members ofthe friction device of my invention; while the upper members of thisfriction device are located in and guided by the ends of a cross-tieserving as a yoke between the engine main frames. Tl e function of thiscross-tie in its character as ayoke is to brace the frames and transmitthe thrust of the lateral moven'ient of the friction devices to bothframes simultaneously. As will be clearly shown hereinafter the specificconstruction and particular arrangement of these parts permits maximummovement within the available space between the frame and wheels; and inorder to prevent distortion of the side rod connection with thecrank-pin and also prevent obstruction of the lubricating ducts oroil-holes of this connection, I have provided a novel form of crank-pinhearing which consists of a cylinder divided vertically along thecrankpin axis and having diametrically opposite Specification of LettersPatent.

Patented Apr. 23,1L9dh.

Serial No. 182,978.

flattened sides. This particular form coacts with my improved frictionalguides in permitting maximum lateral movement without disturbing theregistering relation of the oil-hole in this cylindrical bearing and theoil-hole in the side-rod, this effect being secured by the fact that thebearing is free to rotate with its axis co-inciding with the oil-hole.In this manner the crankpin connection and the frictional resistanc tolateral movement of the leading driving wheels are mutuallyaccommodated.

For full comprehension, however, of my invention, reference must be hadto the accompanying drawings in which similar reference charactersindicate the same parts, and wherein:

Figure l is a side elevation of the portion of the engine main frame inthe vicinity of the leading driving wheels and illustrating my improvedflexible means for guiding locomotive in end elevation and the side rodconnection in side elevation;

Fig. 2 1s a vertlcal sectional view taken on line 22 Flg. 1;

Fig. 3 is a plan view of one end of the cross-saddle with the frictionmechanism in place;

liigs. 4i and 5 are respectively a horizontal sectional view and avertical sectional view of the side-rod connection taken on lines 46%Fig. 1 and 5 Fig. 4; and

Figs. 6 and 7 are detail views in side elevation and plan of theflattened cylindrical side rod bearing removed.

The engine main frame to which my invention is applied consists,essentially, of a main frame 7) with its top splice Z the axlebox beingindicated at 0;

According to my invention, the axle-box cross-saddle extends across thelocomotive frame and each ofits ends presents a hoes ing or support 6,the lower edges f of which rest in seats 9 in the top of the axle-boxwhile the top of these housings act as supports for the bottom members7?. of the frictional device fastened securely against displacementthereon. The upper member i of this frictional device is carried by aholder of approximately inverted U-form p which is, in turn, located inand guided by a guide preferably presented by the transverse memberserving as an engine frame cross-tie.

This member is indicated at j and has furcated ends 70 serving as theguide just mentioned, the adjacent faces of the parts of which havevertical shoulders m which register with vertical recesses 91 in thesides of the holder p thus guiding the same in a vertical direction andpreventing relative lateral displacement. This transverse member isrigidly secured at 0 to the tops of the engine main frame splices b.

The friction devices proper consist of a pair of rectangular blocks eachhaving a pair of side rises r and a central rise 8, the rises and allcontacting surfaces of these rises being inclined to present inclinedplanes which convert lateral displacement of the bottom blocks with thecross-saddle into vertical movement of the upper blocks.

These registering inclined planes are dis posed across the length of thelocomotive and permit displacement of the lower blocks relatively to theupper blocks in that direction, and prevent displacement in lateralrespects; upward movement of the upper block is also permitted. Thisupward movement of the upper block and consequently,

the lateral displacement of the lower block and the driving wheels isresisted by the pressure to the top inclined planes through the springst and equalizers to acting upon the holders 3) through the medium of thebearer '0, the holder being recessed as at w to form a seat for therounded end 3 of the bearer.

The side-rod connection which I have devised to accommodate the maximumlateral displacement of the driving wheels comprises a crank-pin bearingconsisting of a cylinder 2 divided vertically along the crank-pinaxisinto semi-cylindrical portions 3 and 4 clasping the crank-pin andarranged between the friction blocks 5 and 6 in the side-rod ends, theaxis of the bearing of course, coinciding with the axis of the crankpin,while the convex sides are vertical, the oil-hole 7 being drilleddownwardly through the bearing in alinement with the oil-hole 8 in theside-rod. In order to prevent wear of the inside faces of the side-rodends these faces are furnished with top and bottom wearing strips 9, thefriction blocks 5 serving as vertical bearing strips for the samepurpose. A vertieally adjustable block 20 of wedge-form is locatedbetween friction block 6 and the adjacent portion of the siderod and isadapted to be adjusted by a bolt 21 and nut 22. The face of the block 6in bearing relation with the wedge 20 is inclined to coincide with thelatter.

The combination and particular arrangement of the parts of the yieldingresistance device provides a vertical sliding connection between thefurcated ends of the cross-tie j and the holder 39 through the medium offlanges 10 formed on the holder and straddling the bottom blocks at thetop of the ends of the saddle e, such flanges having continuations ofthe recesses n engaged by the shoulders m which are extended downwardlyto the bottom of the furcated ends of the cross-tie as shown clearly inFig. 1.

There is a constant yielding resistance to the upward movement of thetop block, and consequently as the side thrust of the wheel flangeagainst the rail head overcomes the friction between the inclinedplanes, and the holder 19 commences to rise, aside thrust against theshoulders m is created, thus developing a resistance at this pointsufficient to place the applied load in required position, or, in otherwords, aline the front end of the locomotive body with the truck. Theresult of the yielding resistance of this inclined plane and faces ofthe shoulders is that the friction between the rails and wheel flangesis minimized the benefit of which is reflected on the following drivingwheels of the locomotive. Simultaneously with the side movement of thewheels with relation to the engine main-frame and as the side rods arethrown out of parallelism with the main frame a sliding movement of thesliderod and crank-pin bearing, without vertical rotary displacement ofthe bearing is effected. This particular construction and arrangement ofthe crank-pin bearing secures constant alined position of the oil-holesin the bearings and side-rod ends, such result being due to the factthat the rotary movement of the bearing during this equalizer movementis around an axis coincident and alined with the oil-holes.

The cylindrical crank-pin bearings are applied wherever an operatingpart of the locomotive must work out of alinement.

W hat I claim is as follows:

1. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame, the axle-boxesand supports on the axle-boxes and standing above the height of theadjacent portions of the frame, of guides on the frame registering withthe supports, members capable of vertical movement and effectingconnection between the guides and supports such members being constructed and arranged to absorb the lateral displacement of the wheels,and guided by the said guides; and equalizer mechanism bearing upon themembers.

2. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame and the axle-boxcross-saddle, of a cross-tie the ends of which register with the ends ofthe saddle, members capable of vertical movement and guided by the endsof the cross-tie, and equalizer mechanism bearing upon the members.

Yielding mean for guiding the leading driving wheels of locomotives,comprismg the combinatiotn with the engine main frame and the axle-box,of an axle-box crosssaddle with housing-ends straddling the engine mainframe and seated on the top of the axle-boxes; a cross-tie the ends ofwhich register with the ends of the saddle, members capable of verticalmovement and guided by the ends of the cross-tie, equalizer mechanismbearing'upon the members, and registering inclined planes fixedlycarried respectively by the saddle and vertically movable members.

4. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame, and theaxle-boxes, of an engine crosssaddle, a cross-tie with furcated endsstraddling the ends of the cross-saddle, members capable of verticalmovement such members being constructed and arranged to absorb thelateral displacement of the wheels guided in the ends of the cross-tie,and equalizer mechanism bearing upon the mechanism.

5. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame, and axle boxesand supports on the boxes, of a cross tie with furcated ends straddlingthe supports, holders capable of vertical movement and effecting slidingrelation between the cross-tie and supports and guided in the ends ofthe cross-tie, equalizer mechanism bearing upon the holders, andregistering inclined planes fixedly carried respectively by the supportsand vertically movable holders.

6. Yielding means for guiding the lead ing driving wheels oflocomotives, comprising the combination with the engine main frame andthe axle-box cross-saddle, of a cross-tie the ends of which registerwith the ends of the saddle and the said ends of the cross-tie havingvertical guides, holders having grooves with which the guides register,equalizer mechanism bearing upon the said holders, pairs of blocks withinclined planes, means securely fastening the upper blocks within theholders, and means securely fastening the lower blocks upon the ends ofthe cross-saddle with the inclined planes thereof in registeringrelation with the inclined planes of the upper blocks.

7. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame and the axle-boxcross-saddle having housing-ends straddling the engine main frame andseated on the top of the axleboxes; of a cross-tie the ends of whichregister with the ends of the saddle and the said ends of the cross-tiehaving vertical guides, holders having grooves with which the guidesregister, equalizer mechanism bearing upon the said holders, pairs ofblocks with inclined planes, means securely fastening the upper blockswithin the holders, and means securely fastening the lower blocks uponthe tops of the housing ends of the cross-saddle with the inclinedplanes thereof in register ing relation with the inclined planes of theupper blocks.

8. Yielding means for guiding the leading driving wheels of locomotives,comprising the combination with the engine main frame and the axle-boxcross-saddle, of a cross-tie with furcated ends straddling the ends ofthe cross-saddle and the said ends of the cross-tie having verticalguides, holders having grooves with which the guides register, equalizermechanism bearing upon the said holders, pairs of blocks with inclinedplanes, means securely fastening the upper blocks within the holders,and means securely fastening the lower blocks upon the tops of thehousing ends of the cross-saddle with the inclined planes thereof inregistering relation with the inclined planes of the upper blocks.

9. In yielding means for guiding the leading drive-wheels of locomotivesthe combination with the engine main frame and equalizer mechanismincluding vertically movable members and means yieldingly resisting themovement thereof, of a transverse member serving as a frame cross-tieand a guide for the said movable members.

10. The combination with a locomotive leading driving wheel, a crank-pinthereon and a side-rod with a head having an opening for accommodatingthe crank-pin and a bearing therefor and an oilhole, of a radialcrank-pin bearing mounted in the side rod and consisting of a cylinderhaving its sides flattened, its crank-pin bore coinciding with an axislocated in a plane intersecting the flattened sides, and an oil-holeextending at right angles to the bore and registering with the oil-holein the side rod.

11. The combination with a locomotive leading drivingwheel, a crank-pinthereon and a side-rod with a head having an opening for accommodatingthe crank-pin and a bearing therefor and an oil-hole, of a radialcrank-pin bearing mounted in the side rod and consisting of a cylinderhaving its sides flattened, its crank-pin bore coinciding with an axislocated in a plane intersecting the flattened sides, and an oil-holeextending at right angles to the bore and registering with the oil-holein the side rod, friction blocks with concave faces and located withinthe side rod head and in registering relation with the sides of thebearing, and top and bottom wear strips within the side-rod head andbearing between the ends of the bearing and the said side-rod head.

12. Yielding means for guiding the leading driving wheels oflocomotives, comprising the combination with the engine main frame andthe axle boxes, of an axle-box cross-saddle with housing-ends straddlingrespectively by the cross-saddle and vertithe engine main frame andseated on the cally movable holders. 1C tops of the axle-boxes; acr0ss-tie with fur- In testimony whereof I have signed my cated endsstraddling the ends of the crossname to this specification in thepresence of 5 saddle, holders capable of vertical movement a Witness.

and guided in the ends of the cross-tie, equal- 1 JOSEPH W. BUCKLAN D.izer mechanism bearing upon the holders, and Witness registeringinclined planes fixedly carried GORDON G. (300KB.

1 Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

t Washington, D. C.

